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Threats / Adobe / CVE-2016-4117
CVE-2016-4117 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-22

Adobe Flash Player vulnerability

A type confusion vulnerability in Adobe Flash Player enables remote code execution when processing incompatible resource types.

Verdict

Today item — known-exploited.

This vulnerability allows attackers to execute arbitrary code on vulnerable systems through crafted Flash content. Active exploitation in the wild and high EPSS score indicate significant risk to Flash users.

CISA KEV Yes · 2022-03-033EPSS 0.94354 (verify live)4
01

Is it exploitable?

— the evidence, ranked above the score
Reported exploitation
21 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.94354 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Adobe, Flash Player. Confirm exact fixed builds in the vendor advisory.
NVD ↗Reported
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution not established

No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.

03

Why it matters

— the attack path, told twice: adversary, then board
1

Front door — unauthenticated access narrative 1

Attacker
I craft a malicious Flash file that exploits type confusion when the player processes resources with incompatible types.
Business
Users visiting compromised or attacker-controlled websites face immediate code execution risk without user interaction beyond normal browsing.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
I deliver the malicious SWF through web pages, email attachments, or compromised advertising networks to reach target systems.
Business
Attack surface spans web browsing, email clients, and embedded Flash content across enterprise and consumer environments.
3

Lateral reach — past segmentation narrative 3

Attacker
I gain code execution within the Flash Player process context, allowing me to install malware, steal data, or pivot to system compromise.
Business
Successful exploitation leads to data theft, system compromise, and potential lateral movement within networks.
04

What to do

— defensible action
  • Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • 21 reported-exploitation source(s)
  • Catalogued by adobe (CNA)
  • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
  • Disclosure & credit2
    Catalogued by adobeCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.